UPDATE: MIDI to Arduino to play a guitar (Instruments in the Attic Organ Update) [With Audio]
MIDI to micro-controller (Arduino) framework to allow for actuation of servos, motors, and solenoids via standard musical keyboard inputs. Current system is monophonic, plans are in the works to create a polyphonic system. This version have audio. Note the noise that comes through the pickups. The source is thought to be the non-shielded servos.